| 摘要 |
PROBLEM TO BE SOLVED: To increase the plasticizing capability of a screw in an injection device for a motorized injection molding machine for injecting molten resin in a heating cylinder into a molding cavity of a mold. SOLUTION: A screw 8 is rotated by driving synchronously two servo motors 26, 26 in the metering process to plasticize resin. The screw 8, therefore, is rotated by the output twice as much as that of an injection device with one servo motor to increase the plasticizing capability of the screw 8 and provide a large motorized injection molding machine thereof.
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